An intelligent control system for steel tank trailer reconnection

Abstract

The invention relates to the technical field of railway transportation, and discloses an intelligent control system for reconnecting a molten steel tank trailer. The control system comprises a locomotive body, wherein an equipment cabinet is arranged on the locomotive body, a sensing camera is arranged on the equipment cabinet, a laser radar and an automatic coupling device are respectively arranged on the locomotive body, and automatic parking devices and derailment monitoring devices are respectively arranged on both sides of the locomotive body. The scheme can automatically complete the reconnection and disassembly work, and automatically complete the through connection of machinery, electricity and pipelines. The molten steel tank car can be grouped into an intelligent system, and the sensing, parking and safety protection functions of the trailer in the intelligent system can be effectively completed. The state of its own ladle can be detected, and alarm information can be output. The vehicle state can be intelligently analyzed to provide inspection and maintenance suggestions, so that the molten steel tank car has its own braking force, can park in real time to prevent slipping, and no manual operation is required. The overall modification difficulty of the tank car is low, and the disassembly and maintenance are strong, thereby improving the practicality in actual use.

Description

Technical Field

[0001] The invention relates to the technical field of railway transportation, and in particular to an intelligent control system for reconnecting molten steel tank trailers. Background Art

[0002] Train marshaling is both the organization of vehicle flow and the use of station equipment; it is not only a strategic deployment of the division of labor among stations in the railway network, but also an effective means to adjust the direction of the railway and the workload of the station and to ease the transportation tension. In the use of passenger and freight trains, marshaling technology is often used to achieve functions such as multi-car coupling, multi-car operation, and power traction. Recoupling technology includes mechanical, electrical, and pipeline technologies. The automatic close-coupled coupler currently used in power-distributed EMUs can achieve integrated mechanical, electrical, and pipeline coupler connections.

[0003] Traditional molten steel tank cars are manually coupled and decoupled, have no braking and traction functions, no electrical communication and control functions, and rely entirely on manual and locomotive traction control. The status of the molten steel tank and its thermal insulation and fireproof performance are completed by personnel observation and regular inspections. Manual recoupling and decoupling work is required. Without electrical communication and control functions, the train tail line status cannot be grasped and can only be relied upon for personnel observation and adjustment. It cannot measure and perceive its own operating conditions and can only rely on ground personnel's experience observation and regular inspections. It has no automatic parking and braking capabilities and requires manual anti-slipping, which is not very practical.

[0004] Therefore, based on the above technical problems, it is necessary for technicians in this field to develop an intelligent control system for the reconnection of molten steel tank trailers. Summary of the invention

[0005] The purpose of the present invention is to provide a steel tank trailer reconnection intelligent control system to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a steel tank trailer reconnection intelligent control system, comprising a locomotive body, an equipment cabinet is provided on the locomotive body, a sensing camera is provided on the equipment cabinet, a laser radar and an automatic coupling device are provided on the locomotive body, and automatic parking devices and derailment monitoring devices are provided on both sides of the locomotive body.

[0007] Preferably, the equipment cabinet and the laser radar are arranged at the same end, and the front end and the rear end of the locomotive body are provided with automatic coupling devices.

[0008] Preferably, the equipment cabinet is used to place a network switch, a driver of an automatic parking device, a wireless antenna, a host of a derailment monitoring device, and a driving device of an automatic coupling device, which are arranged inside the equipment cabinet.

[0009] Preferably, the equipment cabinet is fixed to the locomotive body by bottom bolts.

[0010] Preferably, the automatic parking device is installed on the locomotive wheel pair, and the braking of the molten steel tank car relies on the traction and pulling of the locomotive. When the vehicle needs to be parked in place to prevent slipping after the molten steel tank car is disassembled, the automatic parking device will act to clamp the wheels to prevent the vehicle from slipping.

[0011] Preferably, the derailment monitoring device is installed on the rear frame steel structure to monitor the wheel-rail condition of the rear frame wheels in real time, and when wheel-rail deviation occurs, an alarm message can be immediately issued to prompt the locomotive to take deceleration intervention measures.

[0012] Preferably, the automatic coupling device is installed at the couplers at both ends of the vehicle and is installed on the coupler by welding. The basic principle of the coupling device is an electric drive hydraulic pump. The vehicle end directly drives the hydraulic pump in the coupling device on the coupler through DC24V or other standard power supply to perform the uncoupling action. When the uncoupling electrical signal is triggered, the power drive equipment (power supply, relay, contactor) in the vehicle equipment cabinet, through the power line between the equipment cabinet and the coupler coupling device, the vehicle end outputs power to directly drive the hydraulic device in the automatic coupling device, through the lever fulcrum of the hook body, the hydraulic stroke drives the hook pin to complete the coupler opening action. At the same time, the automatic coupling device can be manually unhooked by manually pressing the tail end of the lever. Since the automatic unhooking device is installed on the coupler and remains relatively fixed with the coupler, there will be no relative displacement between the unhooking device and the coupler, and the stroke is shortened to the greatest extent, thereby improving the reliability and efficiency of the unhooking action.

[0013] Preferably, the electrical and pipeline connection parts of the vehicle reconnection are realized by an integrated magnetic connector, and the connector is relatively flexible and fixed and the connector end face is guided, so that when reconnecting, the connector can be self-attracted and aligned by magnetic attraction to complete the electrical and pipeline reconnection. When the vehicle is uncoupled, it is only necessary to ensure that the vehicle is straight away from a certain distance to pull apart the magnetic absorption connector to complete the electrical and pipeline uncoupling.

[0014] Preferably, the laser radar is arranged on one side of the vehicle end and is used for distance perception and obstacle detection at the rear of the train, which can save system costs and avoid the misjudgment and misapplication of obstacles and distances caused by the double-end laser radar.

[0015] Preferably, the driver of the automatic parking device, the wireless antenna, and the host of the derailment monitoring device are all connected to a network switch.

[0016] Preferably, the perception camera is installed on the equipment cabinet so that the camera head of the perception camera can have a height of more than 3 meters, meeting the field of view of the high-definition perception camera, and can realize functions such as obstacle type judgment, road condition monitoring, distance calculation, and special judgment. At the same time, a molten steel tank monitoring camera and probe can be set at this position to monitor the temperature and status of the entire molten steel tank.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention is an intelligent control system for the coupling of molten steel tank trailers. This solution can automatically complete the coupling and uncoupling work, and automatically complete the through-connection of mechanical, electrical and pipelines. The molten steel tank trucks can be grouped into the intelligent system, and effectively complete the perception, parking, safety protection and other functions of the trailer in the intelligent system. It can detect its own ladle status, output alarm information, and intelligently analyze the vehicle status to provide inspection and maintenance suggestions, so that the molten steel tank truck itself has braking force, can park in real time to prevent slipping, and does not require manual operation. The overall modification of the tank truck is low in difficulty, and it is highly detachable and maintainable, which improves the practicality during actual use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the module structure in the present invention;

[0021] Figure 3 It is a schematic diagram of the driving control process in the present invention;

[0022] Figure 4a-4c This is a schematic diagram of the automatic coupling structure of the present invention;

[0023] Figure 5 This is a schematic diagram of the structure of the magnetic connector in the present invention;

[0024] Figure 6 It is a schematic diagram of the connector structure in a closed state in the present invention;

[0025] Figure 7 It is a schematic diagram of the internal structure of the connector in the present invention;

[0026] Figure 8 It is a schematic diagram of the flexible support structure of the connector in the present invention.

[0027] In the accompanying drawings: 1, equipment cabinet; 2, perception camera; 3, laser radar; 4, automatic coupling device; 5, automatic parking device; 6, derailment monitoring device, 7 flexible suspension, 8 wiring harness hose, 9 coupler beam fixing point, 10 guide pin, 11 guide hole, 12 roller, 13 flexible sealing layer, 14 magnetic suction device, 15 air duct interface, 16 connector inner core terminal, 17 outer fulcrum lever form, 18 inner fulcrum lever form, 19 pull-up hook tongue, 20 push-down hook tongue. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0029] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0030] Example

[0031] See also Figure 1-3 As shown, the present invention provides a technical solution for an intelligent control system for a steel ladle trailer reconnection: comprising a locomotive body, an equipment cabinet 1 is provided on the locomotive body, the equipment cabinet 1 is fixed to the locomotive body by bottom bolts, a sensing camera 2 is provided on the equipment cabinet 1, a laser radar 3 and an automatic coupling device 4 are respectively provided on the locomotive body, an automatic parking device 5 and a derailment monitoring device 6 are respectively provided on both sides of the locomotive body, the equipment cabinet 1 and the laser radar 3 are arranged at the same end, and the front end and the rear end of the locomotive body are both provided with the automatic coupling device 4, and the equipment cabinet 1 is used to place a network switch, an automatic parking device, and a derailment monitoring device 6 arranged inside the equipment cabinet 1. The driver of the vehicle device 5, the wireless antenna, the host of the derailment monitoring device 6, and the driving equipment of the automatic coupling device 4, the automatic parking device 5 is installed on the locomotive wheel pair, the braking of the molten steel tank car relies on the traction and pulling of the locomotive, and when the molten steel tank car needs to be parked in place to prevent the vehicle from slipping after the molten steel tank car is disassembled, the automatic parking device 5 will be activated to clamp the wheel to prevent the vehicle from slipping, and the derailment monitoring device 6 is installed on the rear frame steel structure to monitor the wheel-rail situation of the rear frame wheel pair in real time. When the wheel-rail deviation occurs, an alarm message can be immediately issued to prompt the locomotive to take deceleration intervention measures. The automatic coupling device 4 is installed at the hooks at both ends of the vehicle. Figure 4a-4c , it is installed on the coupler by welding, the driving device of the automatic coupling device 4 is installed in the vehicle intelligent driving equipment cabinet 1, when the electrical signal is triggered, the hydraulic motor is activated, and the pressure is transmitted to the hydraulic pump through two hydraulic pipelines, and the hydraulic stroke drives the hook pin to complete the coupler opening action. Since the automatic hook-off device is installed on the coupler and remains relatively fixed with the coupler, there will be no relative displacement between the unhooking device and the coupler, and the stroke is shortened to the greatest extent, improving the reliability and efficiency of the unhooking action. The laser radar 3 is arranged on the side of the vehicle end, which is used for distance perception and obstacle detection at the rear of the train. Means can save system costs and avoid obstacles and distance misjudgment, erroneous use and the like of the double-end laser radar. The driver of the automatic parking device 5, the wireless antenna, and the host of the derailment monitoring device 6 are all connected to the network switch. The perception camera 2 is installed on the equipment cabinet 1, so that the camera of the perception camera 2 can have a height of more than 3 meters to meet the field of view of the high-definition perception camera 2, and can realize the functions of obstacle type judgment, road condition monitoring, distance calculation, special judgment, etc. At the same time, a molten steel tank monitoring camera and probe can be set at this position to monitor the temperature and status of the entire molten steel tank.

[0032] In this embodiment, when the locomotive is leaving, the control end receives a departure request signal, and the laser radar 3 and the perception camera 2 monitor the surrounding environment in real time. When obstacles or abnormal tanks are detected, and the derailment monitoring device 6 detects abnormalities, a signal is fed back to the control end, and a reply is made to prohibit departure. After the problem is solved, the departure request is received again;

[0033] If relevant problems are detected, they will be fed back to the automatic parking device 5, and the locomotive will be allowed to depart. If obstacles or tank abnormalities are detected, and the derailment monitoring device 6 detects abnormalities, the signal will be fed back to the control end, an alarm will be issued to the locomotive, and it will be determined whether the safety protection threshold is reached. If it is reached, a parking control signal will be issued;

[0034] If no relevant problems are detected, the automatic parking command is received or the system is powered off and the driving is completed.

[0035] See also Figure 4a-4c (It shows the outer fulcrum lever form 17, the inner fulcrum lever form 18, the upper hook tongue 19 and the lower hook tongue 20), the automatic coupling device can complete the function of pulling the hook tongue up or pushing the hook tongue down according to the hydraulically driven lever setting, and there are also other levers and hydraulic device positions and deconstruction changes designed to complete the driving of the hook tongue. The present invention wants to further protect the design concept of setting a coupler integrated drive device on the hook body to drive the unhooking.

[0036] See also Figure 5-7 As shown, further, the molten steel tank car does not need a battery device, and its charging relies on the reconnection cable for charging. When the reconnection is completed, the tank car and the locomotive have completed the connection between the power supply and the air circuit. The locomotive can provide power and air source for the molten steel tank car system through the reconnection power line. When the reconnection process is in progress, the locomotive first keeps the air circuit and power supply of the reconnected part disconnected. When the electrical car coupler is in place, the locomotive closes the air circuit plug door and the reconnection power supply and provides relevant current and wind pressure data feedback. When the decoupling process is in progress, the locomotive disconnects the reconnection power supply and air supply, and can decoupling. The end connection of the tank car is based on a flat plug-in electrical connector, with guide pins and guide holes added. When the two magnetic connectors are close, the relative position can be automatically calibrated to a certain extent, and then the magnetic device on the magnetic connector is attracted into place. The magnetic electrical connector terminal uses a flat plug-in structure instead of a traditional pin and socket structure, which can greatly reduce the wear or damage of the terminal. The reliable connection between the magnetic connectors and the stable contact of the inner core of the metal terminal of the connector are guaranteed by the joint action of the guide pin and the magnetic device. The form of the magnetic connector is shown in Figure 5 (It also shows the flexible suspension 7, the harness hose 8 and the coupler beam fixing point 9). When the two magnetic absorption connectors need to be untied, they can be untied by pulling with a large force in a direction perpendicular to the end face of the connector;

[0037] The magnetic connector of the present invention is equipped with an automatic connector closing device. The automatic closing device adopts a roller curtain design and is controlled by two upper and lower drive shafts. When the connector end face needs to be closed and protected in the non-connected state, the closed flexible protective layer can be covered on the connector surface by the rotation drive of the upper and lower rollers. At the same time, the rollers control the protective layer to be tightened to ensure the closing effect. When connection is required, the automatic closing device can roll and control the flexible protective layer to detach from the rolled-in rolling shaft to expose the connector inner core according to the corresponding instructions. The connector in the closed state can be seen Figure 6 (It shows the guide pin 10, the guide hole 11, the roller 12, the flexible sealing layer 13 and the magnetic attraction device 14).

[0038] The tail outlet of the electric coupler can be in the form of a hose joint, a hose threading and a flexible air duct to ensure the sealing performance of the connector tail and protect the cable at the same time. The setting of the connector end face air duct and terminal and the setting of the connector tail outlet pipe and wire need to be calculated accordingly to ensure the balance of the left and right weights of the electric coupler. At the same time, the bottom of the electric coupler can be in the form of a ball, so that under the structure of the tray support design, the two electric couplers can move together to prevent the shear force on the connector end face. For specific embodiments, see Figure 7 (It shows the air duct interface 15 and the connector inner core terminal 16). Considering the poor flexibility of the tray structure, the tray structure is not illustrated in the examples of the present invention.

[0039] Based on the characteristics of the magnetic connector of the present invention, its use as an electric coupler in the coupling of locomotive vehicles does not require a mechanical support structure. It relies on flexible connection and suspension to ensure that the electric coupler automatically returns to a relatively accurate position in a natural state to achieve the coupling action. The specific embodiment of the magnetic connector on the locomotive vehicle is shown in FIG. Figure 5 .

[0040] First, the magnetic connector is suspended under the hook through three or other number of steel wire ropes, and the end face of the connector is 50mm beyond the end of the hook tongue groove of the hook (other types of hooks can be adjusted according to the specific implementation to ensure the reconnection in place and the margin of the tail cable). This ensures the horizontal support of the magnetic connector when it is naturally suspended, and maintains the flexible activity space of the magnetic connector in the process of relative movement. The two outlet hoses at the tail of the magnetic connector are fixed on both sides of the hook beam of the hook. They can be fixed at multiple points to ensure the reliable fixation of the wire tube on the hook beam. The hoses ensure an arc of R ≤ 1000mm. This design can ensure the horizontal stability of the magnetic connector, so that it can ensure the horizontal posture of the connector itself, and will not rotate randomly by inertia in a natural state. At the same time, this design will not restrict the swing flexibility of the magnetic connector while ensuring the stability of the magnetic connector. The flexible support can provide the maximum range of flexible movement margin within the range that the magnetic attraction force and the fixing pin can bear.

[0041] Furthermore, the above-mentioned vehicle-end electrical coupler form is completely dependent on the relative movement of the vehicles during the vehicle coupling and uncoupling process. When the vehicle moves relatively close to the mechanical coupler, the magnetic electrical coupler can be automatically guided to close and complete the reconnection. When the mechanical coupler releases the connection principle of the vehicle relative movement, the magnetic electrical coupler can automatically detach after reaching a certain vertical pulling force.

[0042] Further, on the basis of the above, the connector module can be adjusted to provide a wind path reconnection function. For specific embodiments, see Figure 7 When the magnetic connector is closed, the air duct can be connected through, so that the air duct of the reconnected vehicle can be connected through. Because the magnetic connector has an adjustable suction force and the tail of the connector is a flexible connection, it can ensure that the cross section of the air duct remains flat and sealed.

[0043] In the present invention, another flexible support design of the end connector is proposed. Figure 8 The principle of the connection and unconnection process is the same as above. However, it is supported by a flexible damping device at the end, which is similar to a spring device. It can not only support the magnetic connector to maintain a certain angle position, but also maintain the flexibility of the connector in all directions after the connection is completed, achieving the same Figure 5 The rope hanging structure has the same function.

[0044] In this embodiment, the cost of automatic coupling is reduced, the original flexibility of the Zhan-type coupler is maintained, the coupling function with the non-automatic coupler can be compatible, the re-coupling structure is simplified, the reliability and working performance of the device are improved, the coupling and uncoupling process is simplified, the installation is simple and easy to use, the magnetic connector can automatically guide the calibration position and achieve fitting and fixing, the closed form of the re-coupling connector can effectively prevent water and dust without interfering with the work of the guide pin and the magnetic device, and greatly reduces the volume and complex drive structure of the traditional connector protective shell, the flexibility of the magnetic electrical coupler can be guaranteed by the flexible lifting form, the position is automatically corrected by gravity in the natural hanging state, and the coupling and uncoupling process of the electrical and air circuits can be completed by following the coupling and uncoupling of the mechanical coupler, no secondary drive is required and uncoupling is convenient, the vehicle-end equipment is easy to modify, does not affect the existing mechanical coupler structure and working form, does not need to modify the vehicle hook tail frame and other structures, is suitable for a variety of vehicle models and structures, and the flexible connection and support types are more flexible, which greatly reduces the occurrence of mechanical jamming, limiting, long-term position displacement, etc.

[0045] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

[0046] In the description of the present invention, it is necessary to understand that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0047] In the present invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0048] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent control system for steel tank trailer reconnection, characterized in that: The invention comprises a locomotive body, wherein an equipment cabinet (1) is provided on the locomotive body, a sensing camera (2) is provided on the equipment cabinet (1), a laser radar (3) and an automatic coupling device (4) are provided on the locomotive body, and an automatic parking device (5) and a derailment monitoring device (6) are provided on both sides of the locomotive body; The automatic parking device (5) is installed on the locomotive wheel pair. The braking of the molten steel tank car relies on the traction of the locomotive. When the molten steel tank car needs to be parked in place to prevent it from slipping after being disassembled, the automatic parking device (5) will be activated to clamp the wheels to prevent the vehicle from slipping. The automatic coupling device (4) is installed at the couplers at both ends of the vehicle and is installed on the couplers by welding. The driving device of the automatic coupling device (4) is installed in the vehicle intelligent driving device cabinet (1). When the electrical signal is triggered, the hydraulic motor is activated and the pressure is transmitted to the hydraulic pump through two hydraulic pipelines. The hydraulic stroke drives the coupling pin to move to complete the coupler opening action. Since the automatic coupling device (4) is installed on the coupler and remains relatively fixed to the coupler, the automatic coupling device (4) and the coupler will not be displaced relative to each other, and the stroke is shortened to the greatest extent, thereby improving the reliability and efficiency of the uncoupling action. The electrical and pipeline connection parts of the vehicle reconnection are realized through an integrated magnetic connector. During reconnection, the connector is self-attracted and aligned through magnetic force to complete the electrical and pipeline reconnection. When the vehicle is disassembled, you only need to ensure that the vehicle is in a straight line away from a certain distance to pull open the magnetic connector to complete the electrical and pipeline disassembly.

2. The intelligent control system for steel tank trailer reconnection according to claim 1 is characterized in that: The equipment cabinet (1) and the laser radar (3) are arranged at the same end, and the front end and the rear end of the locomotive body are both provided with automatic coupling devices (4).

3. The intelligent control system for steel tank trailer reconnection according to claim 1 is characterized in that: The equipment cabinet (1) is used to house a network switch, a driver of an automatic parking device (5), a wireless antenna, a host of a derailment monitoring device (6), and a driving device of an automatic coupling device (4) which are arranged inside the equipment cabinet (1).

4. The intelligent control system for steel tank trailer reconnection according to claim 1 is characterized in that: The equipment cabinet (1) is fixed to the locomotive body via bottom bolts.

5. The intelligent control system for steel tank trailer reconnection according to claim 1 is characterized in that: The derailment monitoring device (6) is installed on the rear frame steel structure to monitor the wheel-rail condition of the rear frame wheels in real time, and when wheel-rail deviation occurs, an alarm message is immediately issued to prompt the locomotive to take deceleration intervention measures.

6. The intelligent control system for steel tank trailer reconnection according to claim 1 is characterized by: The laser radar (3) is arranged at one end of the train and is used as a means of distance perception and obstacle detection at the rear of the train, thereby saving system costs and avoiding the situation where obstacles and distance misjudgment and misuse occur in double-end laser radars.

7. The intelligent control system for steel tank trailer reconnection according to claim 3 is characterized by: The driver of the automatic parking device (5), the wireless antenna, and the host of the derailment monitoring device (6) are all connected to a network switch.

8. The intelligent control system for steel tank trailer reconnection according to claim 1 is characterized by: The perception camera (2) is installed on the equipment cabinet (1) so that the camera head of the perception camera (2) has a height of more than 3 meters, which satisfies the field of view of the high-definition perception camera (2) and realizes the functions of obstacle type judgment, road condition monitoring, distance calculation, and special judgment. At the same time, a steel tank monitoring camera and probe are set at this position to monitor the temperature and status of the entire steel tank.

Images